Across
- 4. airway in the respiratory system that conducts air into the lungs
- 5. known as the oral/buccal cavity
- 6. smaller branches of air passageways
- 9. known as voice box and protects the lower airways
Down
- 1. tiny sacs where exchange of oxygen and carbon dioxide happens
- 2. known as the windpipe
- 3. a muscular tube that serves as a passageway for food
- 7. primary organ of smell
- 8. spongy, air-filled organ on either side of the chest